Negative-angle forming die

Details Negative-angle forming die Negative-angle forming die

B - Operations, Transporting

21

D

B21D 5/00 (2006.01) B21D 5/01 (2006.01) B21D 22/08 (2006.01)

Patent

CA 2345941

The present invention provides a negative-angle forming die comprising a lower die half having a supporting portion for placing a sheet metal work, and an upper die half to be lowered straightly downward onto the lower die half for forming the work, an intrusion forming portion formed in the lower die half at an edge portion near the supporting portion inward of a downward stroke line of the upper die half, a rotary cam rotatably provided in the lower die half, a slide cam including an intrusion forming portion and slidably opposed to the rotary cam, and an automatic retractor provided in the lower die half for pivoting the rotary cam back to a position thereby allowing the work to be taken out of the lower die half after a forming operation.

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